Metal truss telegraph-pole.



PATENTBD MAR. 5, 1907.

L. BLESSING. METAL TRUSS TELEGRAPH POLE.

.APlfLIOAI'IDN FILED DBO. 30, 1905.

Wzbzesses LOUIS BLESSING, OF

PATENT OFFICE.

JACKSON, MICHIGAN.

METAl. TRUSS TELEGRAPH-POLE.

No. 846,001. Specification of Letters Patent. Patented March 6, 1907.

Application filed December 30, 1905- Seriel No. 293,929.

To all whom, it may concern:

Be it known that I, LOUIS BLESSING, a citizen of the United States, residing at the city of Jackson, in the county of Jackson and State of Michigan, have invented a new and useful Metal Truss Telegraph-Pole, of which the following is a s ecificatlon.

My invention re ates to improvements in metal truss telegraph-poles, put together in sections, having an insulator on the top and at the first joint of the pole, preventing the" electricity from following the first set of truss-wires down them, and an insulator placed in between the first upper joint of the ole, to which one set of the truss-wires are astened to, preventing the electricity from following the truss-wires or the metal ole to the ground, all arranged, as shown, or the urpose of preventing accidents should any ive creature come in contact with the telegraph-pole. I attain these objects by the mechanism illustrated in the accompanying drawings, in which\ Figure l is a pers ective view of the entire pole, showing insu ators and the outwardprojecting spokes over which the truss-wires pass. Fig. 2 is a partial vertical section of the pole, showing the insulating-joint between the sections and the gas-pipe. Fig. 3 is a perspective view of a guide over which the truss-wires pass and are secured on the ends of the spokes.

Similar figures refer to similar parts throughout the several views.

The telegraph-pole 1 is composed of hollow metal tublng and wood insulating and is put together in sections, as shown. By this manner of construction a telegraph-pole may be made any length.

2 is the cross-arms secured to the pole l,

forming a zigzag truss the whole length of the pole 1, secured at the bottom to the horizontal cross-pipe reinforced by the pipe 15.

6 is a piece of wood conical in shape having upward and downward stems. The lower stem is inserted in the upper end of the lower pipe 1. The upper stem is forced in the lower end of the upper section of the tubular pipe 1. To this wood 6 the wires 9 9 are fastened under the flange, as shown in Fig. 1. These wires 9 9 then continue downward over the guides 3 3, secured to the spokes 10, form a continuous zigzag truss to t 1e bottom, and are then fastened to the horizontal cross-pipe 17, reinforced in the pipIe 14.

he object of the conical-shape wood 6 inserted in the top of the pipe and at the first joint down the pole 1 is to prevent the electric current from following down the pole 1. When there are no currents of electricity passing down the pole 1, there is no harm.

The sections of pole are secured together by the couplings 11, as shown. The pole 1 is secured at the bottom to the cross-coupling which connects the two pi cs 14 and 15 together, forming a ground ancliorage.

I am aware that prior to my invention hollow tubular telegraph-poles have been made. I therefore do not claim such a combination broadly; but

What I do claim as my invention, and desire to secure by Letters Patent, is

1. In a hollow metal pole, the combination of thoconical-shaped wood, 5, forced into the upper end of the pole, reinforcingipes, 14, a series of wires, 8, 8, secured to said conicalshaped wood, and continuing downward over the guides to form continuous zigzag trusses secured at the lower reinforcing-pi es, 14, as shown, and forthe purpose specified.

which have u ward-projecting pins. On these pins are the glass insulators 4, around which the current-wires 7 are secured.

5 is a piece of wood of conical shape having an upper and lower stem. The lower stem is forced in the upper end of the hollow tubular pole 1. To the up )er wood stem the truss-wires 8 8 are secured at the top, then 2. In a hollow metal pipe the combination of the conical-shaped wood, 6, forced into the upper, and lower section of the pipe, the lower series of wires, 9, 9, secured to the conical-shaped wood, 6, said lower series of wires continuing downward over the guides to form continuous zigzag trusses, and secontinuing downward over the guides 13 3, secured on the outer ends of the spokes 10, l

cured to the lower reinforcing-pipes 15, as shown, and for the purpose specified.

3. The combination of a hollow metal pole, cross-anchora e pipes, 14, to which said hollow metal o e 1s secured, said cross-pipes carrying relnforcing-pipes end trussw1res 5 secured to said reinforcing-pipes which latter are adapted to hold the metal pole fastened to the ground, as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

- LOUIS BLESSING.

Witnesses:

CHAS. M. SPINNING, JOHN W. KNIGHT, Jr. 

